12443200434 has 144 divisors (see below), whose sum is σ = 33309787680. Its totient is φ = 3337770240.

The previous prime is 12443200423. The next prime is 12443200463. The reversal of 12443200434 is 43400234421.

It is a happy number.

12443200434 is a `hidden beast` number, since 1 + 24 + 4 + 3 + 200 + 434 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12443200398 and 12443200407.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1890369 + ... + 1896939.

It is an arithmetic number, because the mean of its divisors is an integer number (231317970).

Almost surely, 2^12443200434 is an apocalyptic number.

12443200434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12443200434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16654893840).

12443200434 is an abundant number, since it is smaller than the sum of its proper divisors (20866587246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12443200434 is a wasteful number, since it uses less digits than its factorization.

12443200434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6715 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12443200434 its reverse (43400234421), we get a palindrome (55843434855).

The spelling of 12443200434 in words is "twelve billion, four hundred forty-three million, two hundred thousand, four hundred thirty-four".